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Old 03-24-2021, 04:00 PM
W8LON is online now

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Air gunner for many years with an RWS TO 75 that needs rebuild yet along with a RWS/Diana 38 purchased back in the eighties. Had a 25yard indoor range in last home eleven years ago and spent many evenings with the kids throwing lead. Also had big back yard with silhouette range for the kids during the summer.
In town now limited to a thirty foot basement range or drive to ranges 5-20 miles away.

I’m now venturing into PCP air rifles after studying them a bit. A Hatsan Flash QE in .22cal Walnut should be delivered in a week or so with a foot pump. I just couldn’t resist the price and reviews look good for accuracy and quality. Foot pump looks like a lot of work in videos for an older guy with bad shoulders though. A search on Marketplace had me driving for a pair of scuba tanks already pressurized yesterday. Seller said local FD filled them for him cheap. Guess all I need now is a clamp valve and fill hose to keep it going.
Last test on tanks was 1992 and have always been kept full and in great condition, one aluminum and one steel tank.
May have to have them pressure tested but his FD filled them last year without problems. Will have to contact AirGas and see what they say but price was right, I think? https://shootingsurplus.com/search.p...f=1&in_stock=1
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Last edited by W8LON; 03-24-2021 at 04:08 PM.
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Old 03-24-2021, 04:39 PM
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Tank hydrostatic test for scuba gear is 5 years IIRC which is putting you 25 years out of date and legality. Probably the main reason why the price was right. Should be a DOT rating code with last year of inspection stamped on it somewhere, usually around the neck area. Something like DOT 3a or 3ht followed by a year , 1992. The rating stamp will tell you max pressure for normal use.

Good news is that aluminum and steel tanks are not time limited like composite or carbon fiber tanks that expire after 10 or 15 years and can no longer be used. As long as your tanks will pass a hydrostatic test check you can continue to use them. We have tanks with stamped in check dates from WWII still in use where I work. Airgas can do this service. I would expect they would not fill your tanks without a current hydro date. Good luck.
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Old 03-24-2021, 06:14 PM
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Knew there was an expiration date on tanks as I’ve sent in Argon tanks and propane as well. Also read where if stamped for Air Rifle Use Only on tank it’s easier to get them filled than obtaining a dive license.
Aluminum is only rated 3000psi which isn’t many fills at 200bar. Steel tank other than K Valve should be a 4500 tank. It is a US Diver tank with old school reserve for j rod.

I’ll see what FD says tomorrow and perhaps a trip to AirGas.
For the pair at $50 I likely did okay😎
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Old 03-24-2021, 06:15 PM
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Tank Rifles = unnecessary excitement prior to reading thread contents, lol.
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Old 03-24-2021, 06:53 PM
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Quote:
Originally Posted by Kestrel4k View Post
Tank Rifles = unnecessary excitement prior to reading thread contents, lol. <img src="https://www.rimfirecentral.com/forums/images/smilies/wink.gif" border="0" alt="" title="Wink" class="inlineimg" />
Lewis and Clark carried one on their expedition!
I doubt they stopped by the local FD for a refill though&#x1f60e;

Legal now for all wild game in Michigan now they could just catch on.
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Old 03-25-2021, 04:41 PM
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I found a local service to test and fill tanks very reasonably and left them with the steel tank. Hydro test was only $20 with a $7 fill each time. Would assume many fills on a tank full so worthwhile.
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